Method for producing light-accumulating transfer sheet, light-accumulating transfer sheet and transfer method for light-accumulating transfer sheet for inkjet printing

Abstract

A method for producing a light-accumulating transfer sheet, comprising an adhesive layer forming step for forming an adhesive layer on a supporting layer; a resin layer forming step for forming a resin layer on the adhesive layer; an infrared absorbing layer forming step for forming an infrared absorbing layer comprising an infrared absorbent on the resin layer; a microcapsule layer forming step for forming a microcapsule layer, in which microcapsules are dispersed, on the infrared absorption layer; and a pigment dispersion layer forming step for forming a pigment dispersion layer containing a light-accumulating pigment on the microcapsule layer, wherein the microcapsules comprise a heat-meltable content which is reversibly solidified and melted by heat from the infrared absorption layer and an encapsulant for encapsulating the heat-meltable content.

The claims defining the invention are as follows: 
     
         1 . A method for producing a light-accumulating transfer sheet, comprising:
 an adhesive layer forming step for forming an adhesive layer on a supporting layer;   a resin layer forming step for forming a resin layer on the adhesive layer;   an infrared absorbing layer forming step for forming an infrared absorbing layer comprising an infrared absorbent on the resin layer;   a microcapsule layer forming step for forming a microcapsule layer, in which microcapsules are dispersed, on the infrared absorption layer; and   a pigment dispersion layer forming step for forming a pigment dispersion layer containing a light-accumulating pigment on the microcapsule layer,   
       wherein the microcapsules comprise a heat-meltable content which is reversibly solidified and melted by heat from the infrared absorption layer and an encapsulant for encapsulating the heat-meltable content. 
     
     
         2 . The method for producing a light-accumulating transfer of  claim 1 , comprising a protection layer forming step for forming a protection layer on the pigment dispersion layer. 
     
     
         3 . The method for producing a light-accumulating transfer sheet of  claim 1 , wherein the infrared absorbent is a carbon black. 
     
     
         4 . The method for producing a light-accumulating transfer sheet of  claim 1 , wherein the heat-meltable content is a liquid paraffin. 
     
     
         5 . The method for producing a light-accumulating transfer sheet of  claim 1 , wherein the infrared absorption layer forming step is a step for, after forming a latent heat storage agent layer containing a latent heat storage agent, forming an infrared absorption layer containing the infrared absorbent on the resin layer. 
     
     
         6 . The method for producing a light-accumulating transfer sheet of  claim 1 , wherein the microcapsule layer forming step is a step for, after forming a latent heat storage agent layer containing a latent heat storage agent, forming a microcapsule layer in which the microcapsules are dispersed on the infrared absorption layer. 
     
     
         7 . A light-accumulating transfer sheet containing a light-accumulating pigment, comprising:
 a supporting layer;   an adhesive layer formed on the supporting layer;   a resin layer formed on the adhesive layer;   an infrared absorption layer comprising an infrared absorbent formed on the resin layer;   a microcapsule layer, in which microcapsules are dispersed, formed on the infrared absorption layer; and   a pigment dispersion layer containing a light-accumulating pigment formed on the microcapsule layer,   
       wherein the microcapsules comprise a heat-meltable content which is reversibly solidified and melted by heat from the infrared absorption layer and an encapsulant for encapsulating the heat-meltable content. 
     
     
         8 . The light-accumulating transfer sheet of  claim 7 , wherein a protection layer is formed on the pigment dispersion layer. 
     
     
         9 . The method for producing a light-accumulating transfer sheet of  claim 7 , wherein the infrared absorbent is a carbon black. 
     
     
         10 . The method for producing a light-accumulating transfer sheet of  claim 7 , wherein the heat-meltable content is a liquid paraffin. 
     
     
         11 . The method for producing a light-accumulating transfer sheet of  claim 7 , wherein a latent heat storage agent layer containing a latent heat storage agent is formed between the resin layer and the infrared absorption layer. 
     
     
         12 . The method for producing a light-accumulating transfer sheet of  claim 7 , wherein a latent heat storage agent layer containing a latent heat storage agent is formed between the infrared absorption layer and the microcapsule layer. 
     
     
         13 . A transfer method for the light-accumulating transfer sheet containing a light-accumulating pigment, comprising:
 an image forming step for forming an inkjet image on the protection layer of the light-accumulating transfer sheet of  claim 8  by an inkjet recording method;   a supporting layer peeling step for pushing an adhesive peelable film on the inkjet image to cover the inkjet image, and then peeling the supporting layer to expose the adhesive layer; and   a transfer step for pressing the exposed adhesive layer on a transfer receiving object, and then transferring the inkjet image on the receiving object by peeling the adhesive peelable film.